14 lines
666 B
Text
14 lines
666 B
Text
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ccrypt is a utility for encrypting and decrypting files
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and streams. It was designed to replace the standard unix
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crypt utility, which is notorious for using a very weak
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encryption algorithm. ccrypt is based on the Rijndael
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block cipher, which was also chosen by the U.S. government
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as the Advanced Encryption Standard (AES, see
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http://www.nist.gov/aes/). This cipher is believed to pro-
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vide very strong cryptographic security.
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Unlike unix crypt, the algorithm provided by ccrypt is not
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symmetric, i.e., one must specify whether to encrypt or
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decrypt. The most common way to invoke ccrypt is via the
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commands ccencrypt and ccdecrypt.
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